package com.main;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;

/**
 * MySQL数据库备份
 * 
 * @author GaoHuanjie
 */
public class MySQLDatabaseBackup {

	/**
	 * Java代码实现MySQL数据库导出
	 * 
	 * @author GaoHuanjie
	 * @param hostIP
	 *            MySQL数据库所在服务器地址IP
	 * @param userName
	 *            进入数据库所需要的用户名
	 * @param userName
	 *            进入数据库所需要的用户名
	 * @param password
	 *            进入数据库所需要的密码
	 * @param savePath
	 *            数据库导出文件保存路径
	 * @param fileName
	 *            数据库导出文件文件名
	 * @param databaseName
	 *            要导出的数据库名
	 * @return 返回true表示导出成功，否则返回false。
	 */
	public static boolean exportDatabaseTool(String hostIP, String userName,
			String password, String savePath, String fileName,
			String databaseName) throws InterruptedException {
		File saveFile = new File(savePath);
		if (!saveFile.exists()) {// 如果目录不存在
			saveFile.mkdirs();// 创建文件夹
		}
		if (!savePath.endsWith(File.separator)) {
			savePath = savePath + File.separator;
		}

//		PrintWriter printWriter = null;
		BufferedReader bufferedReader = null;
		try {
//			printWriter = new PrintWriter(new OutputStreamWriter(
//					new FileOutputStream(savePath + fileName), "utf8"));
			String command = "C://Program Files//MySQL//MySQL Server 5.5//bin//mysqldump -h " + hostIP + " -u " + userName + " -p "
					+ password + " --set-charset=UTF8 " + databaseName;
			Process process = Runtime.getRuntime().exec(command);
			OutputStream out = process.getOutputStream();// 控制台的输入信息作为输出流
			String inStr;
			StringBuffer sb = new StringBuffer("");
			String outStr;
			BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(savePath + fileName), "utf-8"));
			while ((inStr = br.readLine()) != null) {
				sb.append(inStr + "\r\n");
			}
			outStr = sb.toString();
			System.out.println(outStr);
			OutputStreamWriter writer = new OutputStreamWriter(out, "utf-8");
			System.out.println("7777777777777777777777777777777777777");
			writer.write(outStr);
			writer.flush();
			out.close();
			br.close();
			writer.close();
//			printWriter.flush();
			System.out.println("888888888888888888888888888888888888888");
			if (process.waitFor() == 0) {// 0 表示线程正常终止。
				return true;
			}
			System.out.println("888888888888888888888888888888888888888");
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
		}
		return false;
	}

	public static void main(String[] args) {
		try {
			if (exportDatabaseTool("192.168.1.210", "root", "Luichi2015@",
					"D:\\mysql_backup", "2016-05-05.sql", "syn_db")) {
				System.out.println("数据库成功备份！！！");
			} else {
				System.out.println("数据库备份失败！！！");
			}
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
	}
}